Author: Marco Pracucci Date: March 2020 Status: accepted Problem In Cortex, when using the experimental blocks storage, each querier internally runs the Thanos BucketStore. This means that each querier has a full view over all blocks in the long-term storage and all blocks index headers are loaded in each querier memory. The querier memory usage linearly increase with number and size of all blocks in the storage, imposing a scalability limit to the blocks storage. In this proposal we want to ...